This final rule amends HUD's regulations governing the requirements for pet ownership in HUD-assisted public housing and multifamily housing projects for the elderly and persons with disabilities. Specifically, this final rule conforms these pet ownership requirements to the requirements for animals assisting persons with disabilities in HUD's public housing programs, other than housing projects for the elderly or persons with disabilities. This final rule follows publication of an October 15, 2007, proposed rule, and takes into consideration the public comments received on the proposed rule. In response to one comment, HUD has made a nonsubstantive change to the proposed rule. Specifically, consistent with the phrasing used in HUD's public housing pet ownership regulations, this final rule amends the assisted housing regulations to refer to "animals that assist, support, or provide service to persons with disabilities."